Commit a861736d authored by Naveed Ashfaq's avatar Naveed Ashfaq Committed by Alex Deucher

drm/amd/display: Fixed Intermittent blue screen on OLED panel

[why]
Changing to smaller modes on OLED panel caused a blue screen crash
as driver reported dram change during vactive when it shouldn't

[how]
Added an extra condition to prevent incorrect dram change timing
Signed-off-by: default avatarNaveed Ashfaq <Naveed.Ashfaq@amd.com>
Acked-by: default avatarAurabindo Pillai <aurabindo.pillai@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent 14ae6902
...@@ -2635,15 +2635,14 @@ static void dml20v2_DISPCLKDPPCLKDCFCLKDeepSleepPrefetchParametersWatermarksAndP ...@@ -2635,15 +2635,14 @@ static void dml20v2_DISPCLKDPPCLKDCFCLKDeepSleepPrefetchParametersWatermarksAndP
} }
if (mode_lib->vba.DRAMClockChangeSupportsVActive && if (mode_lib->vba.DRAMClockChangeSupportsVActive &&
mode_lib->vba.MinActiveDRAMClockChangeMargin > 60) { mode_lib->vba.MinActiveDRAMClockChangeMargin > 60 &&
mode_lib->vba.PrefetchMode[mode_lib->vba.VoltageLevel][mode_lib->vba.maxMpcComb] == 0) {
mode_lib->vba.DRAMClockChangeWatermark += 25; mode_lib->vba.DRAMClockChangeWatermark += 25;
for (k = 0; k < mode_lib->vba.NumberOfActivePlanes; ++k) { for (k = 0; k < mode_lib->vba.NumberOfActivePlanes; ++k) {
if (mode_lib->vba.PrefetchMode[mode_lib->vba.VoltageLevel][mode_lib->vba.maxMpcComb] == 0) { if (mode_lib->vba.DRAMClockChangeWatermark >
if (mode_lib->vba.DRAMClockChangeWatermark > dml_max(mode_lib->vba.StutterEnterPlusExitWatermark, mode_lib->vba.UrgentWatermark))
dml_max(mode_lib->vba.StutterEnterPlusExitWatermark, mode_lib->vba.UrgentWatermark)) mode_lib->vba.MinTTUVBlank[k] += 25;
mode_lib->vba.MinTTUVBlank[k] += 25;
}
} }
mode_lib->vba.DRAMClockChangeSupport[0][0] = dm_dram_clock_change_vactive; mode_lib->vba.DRAMClockChangeSupport[0][0] = dm_dram_clock_change_vactive;
......
Markdown is supported
0%
or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment